Fix test docstring

Author: hynek

tests/test_funcs.py

@@ -68,14 +68,16 @@ def test_recurse(self, C, dict_class):
 
  def test_non_atomic_types(self, C):
  """
- Test subclasses of atomic types
+ Non-atomic types that don't have special treatment for are serialized
+ and the types are retained.
  """
 
  class Int(int):
  pass
 
  c = C(Int(10), [Int(1), 2])
  expected = {"x": 10, "y": [1, 2]}
+
  assert expected == asdict(c)
  assert type(asdict(c)["x"]) is Int
  assert type(asdict(c)["y"][0]) is Int